527 citations · 5k across the 144 of their papers we have counts for
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Optical lattices as a tool to study defect-induced superfluidity
Grigory E. Astrakharchik, Konstantin V. Krutitsky, Maciej Lewenstein +2
We study the superfluid response, the energetic and structural properties of a one-dimensional ultracold Bose gas in an optical lattice of arbitrary strength. We use the Bose-Fermi…
Gapped spectrum in pair-superfluid bosons
G. E. Astrakharchik, R. E. Zillich, F. Mazzanti +1
We study the ground state of a bilayer system of dipolar bosons with dipoles oriented by an external field perpendicularly to the two parallel planes. By decreasing the interlayer…
Elusive structure of helium trimers
Petar Stipanović, Leandra Vranješ Markić, Jordi Boronat
Over the years many He-He interaction potentials have been developed, some very sophisticated, including various corrections beyond Born-Oppenheimer approximation. Most of them wer…
Simulation and understanding of quantum crystals
Claudio Cazorla, Jordi Boronat
Quantum crystals abound in the whole range of solid-state species. Below a certain threshold temperature the physical behavior of rare gases (4He and Ne), molecular solids (H2 and…
Liquid and solid phases of 3He on graphite
M. C. Gordillo, J. Boronat
Recent heat-capacity experiments show quite unambiguously the existence of a liquid He phase adsorbed on graphite. This liquid is stable at an extremely low density, possibly o…
Dynamic structure factor of liquid 4He across the normal-superfluid transition
G. Ferre, J. Boronat
We have carried out a microscopic study of the dynamic structure factor of liquid He across the normal-superfluid transition temperature using the path integral Monte Carlo met…